The first part is 8 x 40=320
8 x 7=56
320+56 and i am not sure what you have going on on the other half
1/5 (150x - 80y + 50 - 50x - 25y + 20) = 20x - 21y + 14
what I did is combined the like terms and multiplied each term within the parenthesis by .2
Answer:

Step-by-step explanation:
By FOIL method, 
Answer: the x or the input of a function
Step-by-step explanation:
65 because it is 65 units away from zero.